Science for Kids: Exploring Sound with a Hanger and String

Here’s a fun science activity for kids using common household items. Grab some string and a hanger and explore sound!

*This science activity correlates with Next Generation Science Standard (NGSS) 1-PS4-1.

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Exploring Sound with a Hanger and String

Explore the science of sound with a just a wire hanger and some string!

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Materials for Sound Experiment

• wire hanger
• string

Procedure for Sound Experiment

1. Tie the hook of a wire hanger to the center of a large piece of string. (About 3 feet long)
2. Wrap the ends of the string around your index fingers.
3. Now put your hands over the openings of your ears while holding the string.
4. Lean over and swing the hanger so that it taps against a table or door. What do you hear?

Lucy’s Observations & Comments: “It sounds like a bell!” “The hanger got the noise and it went through the hanger and through the string to my ears.”

Question to Spark More Curiosity & Critical Thinking:

How did it sound? Does banging the hanger against the table sound different if you don’t put the string to your ears? How? How do you think the sound gets to your ears?

What’s Going On:

Check out this awesome video showing how sound travels! 

Want to go even further?

Even more activities to inspire creativity and critical thinking for various ages:

• Try varying the length of the string. Does it affect the sound you hear?
• Try attaching other objects to the string and testing them out.
• Make your own wind chime to hang outside!
• Make some homemade musical instruments.

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